prototype for an infinite array of semi-autonomous percussive devices

prototype for an infinite array of
semi-autonomous percussive devices is a group of small robotic sculptures,
each connected to its immediate neighbors via wires, that
together form a net of robotic life that spreads across the Garden
at the Mattress Factory and over nearby structures. These twenty-five mechanical crickets fill the garden with sound as they listen to their neighbors and act accordingly during Pittsburgh's Robot250 festival. Using Dr. John Conway’s rules for
The Game of Life, each robot activates when a preset number of his neighbors is active and deactivates if too few or too many of his neighbors are active.